Heat And Temperature

During the hot summer months, it feels like the earth is being baked. Businesses have higher energy bills as air conditioning systems have to work harder in order to deal with the intense heat. Identifying where heat comes from is easy. It comes from the sun, fires, and other hot objects. Defining heat is more complicated.

Heat is a flow of energy from warmer to cooler objects. If you were to place your hand on an ice cube, you will notice your hand start feeling cold. This is due to the heat from your hand flowing to the ice cube. The longer you touch the ice cube, the colder your hand becomes. Heat will flow from your hand until it has the same temperature as the ice cube or when ice cube completely melts.

Water molecules are always moving. If you add heat to the water, the molecules will move faster. The hotter the water becomes, the faster the molecules will move.

Temperature is related to how fast the molecules of substance are moving. A thermometer is used to measure the temperature. A thermometer is one of the many temperature instruments. A temperature logger is another instrument used to track temperature for research studies and industrial applications. When molecules move slowly, the temperature is lower. When the molecules move rapidly, the temperature is higher.

Heat and temperature are not the same thing. Imagine that you have a cup and a pale, each filled with warm water. The mass of the water in the pale is greater than the mass of the water in the cup. The temperature of the water in the cup and in the pale is the same. But the pale holds a greater mass of water, so the pale contains more heat.

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